Fedrizzia

Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), Zootaxa 1480, pp. 1-55 : 9-10

Key to adult male Fedrizzia

1. Femur III and IV with large lamellae, seta pv1 thickened. Pedofossae III present. Exopodal patterning between CxII–III striped. Idiosoma 1260 long. Papua New Guinea............ Fedrizzia scutata (Womersley)

- Femur III and IV without large lamellae, sometimes small distal lamella present, seta pv1 not significantly thickened. Pedofossae III absent. Exopodal patterning between CxII–III spotted...................................... 2

2. Femur III and IV with small distal lamellae ( Fig. 16 b)............................................................................... 3

- Femur III and IV without lamellae ( Fig. 16 a) ............................................................................................. 4

3. Sternoventral shield reticulate. Seta h1 with bulbous base. Idiosoma 1160 long. Thailand. ( Figs 33–34 ) ... ............................................................................................................................ Fedrizzia gilloglyi sp. nov.

- Sternoventral shield smooth. Seta h1 blade-like, base not bulbous ( Fig. 1 ). Idiosoma 720 long. Australia: Southeast Queensland ................................................................................ Fedrizzia oudemansi Womersley

4. Sternoventral shield lineate-reticulate, smooth medially ( Fig. 17 b)............................................................ 5

- Sternoventral shield with mesh-like pattern laterally and sometimes postero-medially ( Fig. 17 a) ............ 7

5. Sternoventral shield without suture behind genital opening, intercoxal region smooth ( Fig. 19 b). Idiosoma 1000 –1030 long. Australia: Southeast Queensland. ( Figs. 35–36 ) ................. Fedrizzia parvipilus sp. nov.

- Sternoventral shield with suture behind genital opening demarking smooth (anterior) and reticulate (pos- terior) regions ( Fig. 19 a).............................................................................................................................. 6

6. Sternal setae st2-3 <10 long. Idiosoma 750–880 long. Papua New Guinea.... Fedrizzia carabi Womersley

- Sternal setae st2-3> 15 long. Idiosoma 760 long. Indonesia: Buru .............. Fedrizzia strandi (Oudemans)

7. Suture behind genital opening well separated from genital opening, at level of Cx III–IV. Idiosoma 900 long. Australia: Queensland ........................................................................... Fedrizzia grossipes Canestrini

- Suture behind genital opening close to genital opening, at level of mid CxIII. Idiosoma > 900 ................ 8

8. Ventrianal shield with mesh-like reticulation medially, excepting small bare patches ............................... 9

- Ventrianal shield without mesh-like reticulation medially, lineate-reticulate instead ............................... 10

9. Ventral shield without smooth area between, or just posterior of, Cx IV. Idiosoma 1160 –1260 long. Australia: Southeast Queensland ...................................................................................... F. sellnicki Womersley

- Ventral shield with small, medial smooth area between, or just posterior of, Cx IV Idiosoma 1020 –1050 long. Australia: Southeast Queensland. ( Figs 22–26 ) .................................. Fedrizzia abradoalves sp. nov.

10. Ventrianal shield 127 long, 260 wide. Idiosoma 930 long. Australia: Northeast Queensland ...................... ....................................................................................................................... Fedrizzia derricki Womersley

- Ventrianal shield 139 long, 406 wide. Idiosoma 905 long. Australia: Southeast, Northeast Queensland..... ............................................................................................................... Fedrizzia bornemisszai Womersley

Figures

FIGURE 1. Chelicerae of a female Fedrizzia oudemansi. A palmate corniculus is to the bottom-right of chelicerae, and the corniculus is overlaid by the pilose seta av 1 of the palp trochanter. Scale bar = 10.

FIGURE 16. Femur IV of (A) Fedrizzia parvipilus and (B) Fedrizzia oudemansi. Arrow points to lamella. Scale bar = 50.

FIGURE 17. Ventral shield ornamentation of (A) Fedrizzia abradoalves, showing mesh-like cuticle and (B) Fedrizzia parvipilus, showing lineate-reticulate cuticle. Scale bar = 50.

FIGURE 19. Intercoxal region of (A) Fedrizzia abradoalves, showing suture behind male genital opening and (B) Fedrizzia oudemansi, lacking such a suture. Scale bar = 50.

FIGURES 33 – 34. Fedrizzia gilloglyi sp. nov. 33, venter of female; 34, venter of male. Scale bar = 100.

FIGURES 35 – 36. Fedrizzia parvipilus sp. nov. 35, venter of female; 36, venter of male. Scale bar = 100.

FIGURES 22 – 26. Fedrizzia abradoalves sp. nov. 22, chelicera; 23, gnathosoma of female; 24, gnathosoma of male; 25, venter of female; 26, venter of male. Scale bar = 50 for 22 – 24; 100 for 25, 26.